Im trying to order my posts with some conditionals.

What i need: Filter posts with highlight = 1 then i have another field called ‘class_situation’ that have many values options that need to be ordered by its value.

Here’s what i got so far:

$query->set('meta_query', array(
    'relation' => 'OR',
    'destaque_clause' => array(
        'key' => 'destaque',
        'value' => '1',
    ),
    'class_situation_clause' => array(
        'relation' => 'AND',
        array(
            'key' => 'class_situation',
            'value' => array('Inscrições Abertas / Confirmado', 'Inscrições Abertas', 'Inscrições Encerradas / Não Confirmado', 'Inscrições Encerradas / Confirmado'),
            'compare' => 'IN'
        ),
        array(
            'key' => 'destaque',
            'compare' => 'NOT EXISTS'
        )
    )
));

$query->set('orderby', array(
    'highlight' => 'ASC',
    'class_situation_clause' => 'ASC',
),

If i set the orderby for the ‘highlight’ field its shows the highlighted posts first but the remaning posts are ordered by title. If i change the orderby for the ‘class_situation’ field, its sort correctly but dont shows the highlighted posts at first place. Combinining the two orderby only works for ‘highlight’. What im doing wrong?